// JavaScript Document

<script type="text/javascript">
			var container, stats;
			var camera, scene, renderer, particles, geometry, materials = [], parameters, i, h, color;
			var mouseX = 0, mouseY = 0;
 
			var windowHalfX = window.innerWidth / 2;
			var windowHalfY = window.innerHeight / 2;
 
			init();
			setInterval( loop, 1000 / 60 );
 
			function init() {
 
				container = document.createElement( 'div' );
				document.body.appendChild( container );
 
				camera = new THREE.Camera( 75, window.innerWidth / window.innerHeight, 1, 3000 );
				camera.position.z = 1000;
 
				scene = new THREE.Scene();
				scene.fog = new THREE.FogExp2( 0x000000, 0.0007 );
				
				geometry = new THREE.Geometry();
				
				for ( i = 0; i < 4000; i++ ) {
 
					vector = new THREE.Vector3( Math.random() * 2000 - 1000, Math.random() * 2000 - 1000, Math.random() * 2000 - 1000 );
					geometry.vertices.push( new THREE.Vertex( vector ) );					
					
				}
 
				parameters = [ [ [1.0, 1.0, 1.0], 5 ], [ [0.95, 1, 1], 4 ], [ [0.90, 1, 1], 3 ], [ [0.85, 1, 1], 2 ], [ [0.80, 1, 1], 1 ] ];
				//parameters = [ [ 0xff0000, 5 ], [ 0xff3300, 4 ], [ 0xff6600, 3 ], [ 0xff9900, 2 ], [ 0xffaa00, 1 ] ];
				//parameters = [ [ 0xffffff, 5 ], [ 0xdddddd, 4 ], [ 0xaaaaaa, 3 ], [ 0x999999, 2 ], [ 0x777777, 1 ] ];
				
				for ( i = 0; i < parameters.length; i++ ) {
 
					size  = parameters[i][1];
					color = parameters[i][0];
					
					//materials[i] = new THREE.ParticleBasicMaterial( { color: color, size: size } );
					
					materials[i] = new THREE.ParticleBasicMaterial( { size: size } );
					materials[i].color.setHSV( color[0], color[1], color[2] );
 
					particles = new THREE.ParticleSystem( geometry, materials[i] );
					particles.rotation.x = Math.random() * 6;
					particles.rotation.y = Math.random() * 6;
					particles.rotation.z = Math.random() * 6;
					scene.addObject( particles );
					
				}
 
				renderer = new THREE.WebGLRenderer();
				renderer.setSize( window.innerWidth, window.innerHeight );
				container.appendChild( renderer.domElement );
 
				//stats = new Stats();
				//stats.domElement.style.position = 'absolute';
				//stats.domElement.style.top = '0px';
				//container.appendChild( stats.domElement );
 
				document.addEventListener( 'mousemove', onDocumentMouseMove, false );
				document.addEventListener( 'touchstart', onDocumentTouchStart, false );
				document.addEventListener( 'touchmove', onDocumentTouchMove, false );
				
			}
 
			function onDocumentMouseMove( event ) {
 
				mouseX = event.clientX - windowHalfX;
				mouseY = event.clientY - windowHalfY;
				
			}
 
			function onDocumentTouchStart( event ) {
 
				if ( event.touches.length == 1 ) {
 
					event.preventDefault();
 
					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;
					
				}
			}
 
			function onDocumentTouchMove( event ) {
 
				if ( event.touches.length == 1 ) {
 
					event.preventDefault();
 
					mouseX = event.touches[ 0 ].pageX - windowHalfX;
					mouseY = event.touches[ 0 ].pageY - windowHalfY;
					
				}
				
			}
 
			function loop() {
 
				var time = new Date().getTime() * 0.00005;
				
				camera.position.x += ( mouseX - camera.position.x ) * 0.05;
				camera.position.y += ( - mouseY - camera.position.y ) * 0.05;
 
				for( i = 0; i < scene.objects.length; i++ ) {
				
					scene.objects[i].rotation.y = time * ( i < 4 ? i+1 : - (i+1) );
					
				}
 
				for( i = 0; i < materials.length; i++ ) {
					
					color = parameters[i][0];
					
					h = ( 360 * ( color[0] + time ) % 360 ) / 360;
					materials[i].color.setHSV( h, color[1], color[2] );
					
				}
				
				renderer.render( scene, camera );
			}
		</script>